Ram is great, you can never have too much ram, the more the better. Quanity in general will give you more performance then speed will, this is because, right now, ram speed is above what is needed, in the future you will need both, fast and large quanities. What im saying is, you would rather have 768MB of PC2100 DDR, instead of 640MB PC3200 DDR for it will give you better performance in general to have more, because it wont have to swap as much, but in things where swapping isnt needed, the faster ram is favorable. I went from a 512 133 SD system to a 512 DDR 2700 system and my radeon 9000 pro 3Dmark went up by 1500 points, In future, memory speed is needed more then it is now, im planning on buying 2 512 sticks of PC3200 and gonna be running with a gig of Dual Channel PC3200 effectively 6400 Memory 🙂